Guide for sliding members



RUDOLPH L. #Ah/ON Dec. 25, 1934.v R. L HANSON GUIDE FOR SIJDING MEMBERS Filed Sept. 9, 1932 Patented Dec. 25, 1934 resins PATENT OFFICE GUIDE FOR SLDING MEMBERS Rudolph L. Hanson,

to Jamestown Metal Desk Company,

town, N. Y., a corporation of New York Frewsburg, N. Y., assigner James- Application September 9, 1932, Serial No. 632,384

4 Claims.

This invention relates to an improvement in guide means for sliding members and more particularly to a device which may be adjusted to compensate for wear.

Guide blocks now in use have been found to be somewhat unsatisfactory for the reason that when the block became worn and excessive clearance was apparent between the block and the guideway, it was necessary to remove the block and replace it with a new one. In certain types of reciprocating members where access is readily had to the guide block, no diiiiculty is presented. However, in the case of guide blocks for use with sliding doors, replacement ofv the guide block inl volved the removal of a portion of thek enclosure structure and the door, before access could be had to remove the worn block and substitute a new one. The present invention has been developed primarily for the purpose of eliminating the necessity of removing worn guide blocks by an arrangement which permits movement of a worn block out oi the guideway and the substitution of a new block. This may be accomplished from the exterior of the sliding member and, since it does not require the tearing out and reassembling of any part of the sliding member or related structure, is believed to be an advancement in the art.

The principal object of the invention lies in the provision of guide means for sliding members, said means being renewable as wear occurs.

Another object of the invention lies in the provision of shiitable guide means, operable from the exterior of the member to which it is attached, by which a worn guide block may be replaced by a new block.

A further object of the invention lies in the provision of rotatable guide means which may be locked in any ci its rotated positions to project a guide block into a guideway or groove.

Other and further objects of the invention will be more apparent from the considerations of the following specification which is taken in conjunction with the accompanying drawing and in which Figure 1 is an elevation showing the invention applied to a sliding door;

Figure 2 is an enlarged eleva-tion of the device in position in a door;

Figure 3 is a vertical sectional view taken sub stantially on the line 3-3 of Figure 2;

Figure 4 is an elevation of one modication of the invention and Figure 5 is a vertical sectional view taken sub.

stantially through the vertical center of Figure 4. Referring to the drawing and particularly to Figures 2 and 3, the invention, generally indicated by the reference numeral lo, is shown mounted adjacent to the lower edge of a door 11. The door, being preferably of standard hollow metal construction, comprises a pair ot spaced plates 12 and 13 which define the thickness 5 thereof. Closing the lower edge of the door l1 is a downwardly opening channel 14, which is adapted to receive a reversed channel 16. The base wall 17 of the channel 16, forms the lower edge of the door. Located within the space 18, which is defined by the reversely disposed channels 14 and 16, is a reenforcing bar 19. The bar may either be continuous throughout the width oi, the door or may be confined to the location of the guide members.

Mounted on the face plate 13, is a channel shaped bracket 20, having a base wall 21 and side walls 22 and 23. The wall 22 abuts the base wall of the channel 14. An upwardly directed flange 24 terminates the wall 23 'and provides a convenient means for securing the bracket to the plate 13. The base Wall 21, being slightly spaced from the plate 13, is formed with or adapted to retain a threaded member26, which is welded or otherwise suitably joined thereto. The threaded opening 25 of the member 26 is made to register with an opening 27 drilled in the base wall 21. l

A disc shaped member 28 is pivotally mounted on the bracket 20 by means of a screw 29. The screw projects through a central opening 31 in the member 28, and is threadably engaged with the member 26. A circular recess 32 formed centrally of one face of the member 28 permits the use of a screw having a standard head without interfering with the central location of the mem ber relative to the thickness oi the door. Interposed between the head of the screw 29 and the member 28, is a lock washer 33, which prevents loosening of the screw 29 during normal operation of the door. The member 28 is so positioned that the lower portion thereof extends below the lower edge of the door and is adapted to project .into a guidew'ay or groove 34, provided in the sill or floor 36. A plurality oi openings 37 are made in the member 28, being made in a circle about the opening 31. Each of the openings 37 is registerable with a threaded opening 38 in the base wall 21 of the bracket 20 when the member 28 is rotated about the screw 29. A locking screw 39, placed in the opening 37 and threadably engaged with the walls of the opening 38, provides a stop to prevent inadvertent rotation of the member.

A plate 41 mounted ush with the plate 12,

and located in a suitable opening 42, provides convenient access to the screws 29 and 39. Bordering the opening 32 is a backing strip 43 against which the plate 4l is adapted to rest. The plate 4l is retained in position by means of screws 44 one of which is threadably engaged with the strip 43. When that portion of the member 28, which lies within the sill groove 34, becomes worn, the member may be shifted to a new position so that another section, having the original thickness, lies within the groove. Since the sides of the groove wear much more slowly than the member, the position of the member can be changed several times before any increase in the width. oi the groove is noticeable.

To shift the position of the member, screws 44 are first removed which permits the cover plate 41 to be Withdrawn, giving access to the screws 29 and 39. rPhe screw 39 is then removed and screw 29 is loosened with a suitable wrench. The member 28 is rotated about the screw to a new position. This new position must satisfy two new conditions, namely that the portion of the member which projects .into the sill grooves, must not be worn and that one of the openings 37 must register with the threaded opening 38 in the bracket 2G. With the member thus shifted, screw 39 may be replaced and tightened. The screw 29 is then tightened and the cover plate 4l replaced.

It will be noted from Figure 2 of the drawing that there are only four different positions to which the member can be shifted. The periphery o the disc shaped member is notched to form four different radial projections, each of which is adapted to lie in the groove 34.

A modification of the member 28 is shown in Figures 4 and 5 of the drawing. The member 45 includes most of the essential elements heretofore described, with the exception of the locking means.

The locking screw 39 is replaced by a pair of circular radially serrated areas, one of which is either formed or placed on the base wall of bracket 20, centrally located with respect to the opening 27, the other being .formed or mounted on one face of the member 45 and centered relative to the opening 3l therein. 7I'eeth 46 form the serrated area on one face of the member 45. Pressure of the screw 29 against the member 45 is suiiicient to prevent relative rotation between the member 45 and the bracket 20.

To rotate the member 45 to a new position, it is only necessary to loosen the screw 29 sufliciently to permit the teeth 46 and 47 to pass each other.

Although applicant has shown and described only two modifications of his invention, he does not intend to be limited thereto since it will be apparent to those skilled in the art that other modifications or adaptations may be made without departing from the spirit and scope of the invention as defined in the hereunto annexed claims.

Having thus set forth my invention what I claimas new and for which I desire protection by Letters Patent is:-

l. In a sliding closure, a rotatable disc-shaped member, a plurality of selective guide portions on and projecting radially of said member, means pivotally supporting said member in said closure, said member being so located with respect to said closure as to cause a selected guide portion to project beneath said closure when said member is rotated.

2. In a sliding closure, a rotatable member having a plurality of radially projecting' selective guide portions, means pivotally supporting said member in sai-d closure to project any of said portions therebeneath, and a locking screw for securing said member against rotation relative to said closure with a selected ing beneath said closure.

3. In a sliding closure, a rotatable disc-shaped member', selective guide means on and projectingradially of said member, means pivotally supporting said member in said closure, said member being so located with respect to said closure as to project rany selected portion of said guide means beneath said closure when said member is rotated.

4. In a sliding closure, a rotatable disc-shaped member, selectiveguide means on and projecting radially of said member, means pivotally supporting said member in said closure, said member respect to said closure as to project any selected portion of said guide means beneath said closure when said member is rotated, and further means for securing said mem; ber in desired rotative position.

RUDOLPH L. HANSON.

guide portion project- CERTIFICATE OF CORRECTION.

Patent No. 1,985,495. December 25, 1934.

RUDOLPH L. HANSON.

it is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page l, second column, line 29, after "member 28" insert the words having a plurality of radially directed selective guide portions,; and that the said Letters Patent should be reed with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 25th day of `une, A. D. 1935.

Bryan M. Battey (Seal) Acting Commissioner of Patents. 

